Safety device for scaffolds



y 1942- I L. ZANGER 2,281,966 SAFETY DEVICE FOR SCAFFOLDS Filed Feb. 17, 1941 Patented May 5, 1942 UNETED STATES PATENT OFFICE SAFETY DEVICE FOR SCAFFOLDS Louis Zanger, Brooklyn, N. Y.

Application February 17, 1941, Serial No. 379,342

4 Claims.

This invention relates to a safety bracket for rope suspended scaffolds of the class described in my prior application, Serial No. 254,281, filed February 2, 1939, now Patent 2,228,042, and embodies an improved construction over my prior patent as an article of manufacture and in other features hereinafter brought forth.

An object of my invention is to produce a scaffold rope holder in one integral casting adapted to be secured over the ordinary window washer bolts.

Another object of my invention is to provide a bracket with a base adapted to firmly engage over conventional holding means on a building wallby a single sliding connection.

Yet another object is to produce a locking means for maintaining the connection between the bracket base and the cooperating supporting members on the building wall.

Other objects and advantages of my invention will be apparent from the following detailed description, together with the accompanying drawings, in which:

Fig. 1 is an illustration of the side of a building with a rope suspended scaffold adjacent thereto showing a front elevational view of my invention as it appears in use.

Fig. 2 is a cross section of the scaffold bracket and building wall and shows another means to secure the scaffold rope to the rope ring part of the bracket.

Fig. 3 is a top plan view of the bracket.

Fig. 4 is a side elevation of the bracket.

Fig. 5 is an elevational view of the base and building wall engaging face of the bracket.

Referring to the drawing in detail numeral ID is a substantially L-shaped bracket. The bracket l0 comprises base ll adapted to engag with the side Wall of a building or other structure A and an elongated leg 19 adapted to retain the scaffold rope or ropes. In the wall engaging face of base II is a mortised groove l2 adapted to engage over an elongated tenon member 13 having an enlarged head 18.

The mortised groove I2 is open adjacent the leg l9 of bracket l0 and said groove 12 extends to point l4 just short of the end of base ll, whereby to form an inturned rectangular flange IS in U formation in the wall-engaging face of base ll.

Intersecting at an angle to the base II is a threaded bolt l6 extending through an angularly disposed opening I! in the said base. The opentially the center of the groove l2. The bolt I6 when threaded into opening I! protrudes into groove [2 and contacts the top of an enlarged head l8 of tenon member I3, thereby forcing the flanges l5 tight against the underside faces of said head 18.

Extending from the base I I at substantially right angles is leg l9. The leg I9 is relatively longer than the base II and has an enlarged circular end 20 in which is an opening to form ring 2|. Through the ring 2| is threaded a scaffold rope or ropes 22 as shown in Fig. 1; or through said ring 2| is threaded a piece of material or loop 23 which in turn is to be tied around a scaffold rope 26 as shown in Fig. 2.

The operation and application of the device is quite obvious from the foregoing description. The bolt l6 has thumb engaging head 24 by which bolt I6 is threaded through opening I! into pressing contact with head 3 of member l3 on the building wall A. This secures the bracket ID to the building and the preferred means of securing the scaffold rope by means of a fastening loop or piece of material 23 strung through the ring 2! and tied around the rope or ropes 26 will secure the scaffold 25 against pendulum action.

What I claim as new and desire to secure by Letters Patent is:

1. As an article of manufacture, a scaffold rope holding bracket comprising a wall supported base containing an elongated groove, an inturned flange around an end and sides of said groove in the base, an elongated leg extending from the base at substantially right angles having an enlarged circular portion at the extremity with an opening therein to form a rope holding ring and a bolt angularly threaded through said base and extending into the said groove in the base adapted to cooperate with the inturned flange around the groove to look a suitable supporting member within the groove.

2. In a scaffold rope holding bracket comprising a thick wall engaging base and an elongated relatively thin flat leg extending substantially at right angles from said thicker base portion, an enlarged head at the end of said fiat leg having an opening vertically disposed therethrough, an elongated countersunk groove in the said thick base adapted to receive a suitable smaller headed member and lock means to lock said thick base to the headed member.

3. In a scaffold rope holding bracket comprising a thick wall-engaging base and. an elongated relatively thin flat leg extending substantially at right angles from said thicker base portion, an

enlarged head at the end of said flat leg having an opening vertically disposed therethrough, an elongated countersunk groove in the base portion with a surrounding inturned flange to receive a suitable headed fastener and an angularly disposed bolt intersecting said groove adapted to contact with the head of a suitable headed fastener in said groove to bind the inner surface of said inturned flange against the underside of said headed fastener in tight connection.

4. In an integrally cast quick detachable scaffold rope holder for use in combination with a suitable headed bolt means attached to a building wall comprising the following elements: an

elongated flat leg portion having an enlarged end portion with a vertically disposed rope holder opening therein, a relatively thick shorter base portion extending substantially at right angles to said flat leg portion, said base portion having an elongated countersunk groove therein opening from the bottom of said base up through the said elongated leg to a point below the top of the said base and adjustable locking means extending through the base into said groove adapted to wedge against the head of a suitable headed bolt means engaged within the groove.

LOUIS ZANGER. 

